Improvement in pumps



JOHN BEAN, OF HUDSON, MICHIGAN.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 52,660, dated February:5.0, 1866.

To all whom it may concern:

Beit known that I, JOHN BEAN, of Hudson, in the State of Michigan, haveinvented certain new and useful Improvements in Pumps; and I herebydeclare that the following is a full and exact description of the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

The nature ot' my invention consists ot' certain mechanical devices inthe construction of a pump, by which it is made to throw out acontinuous stream of water.

To enable others skilled in the art to make and use 1n yinvention, Iwill proceed to describe its construction and operation, reference beingmade to the accompanying drawings.

Figure l is a vertical section of my pump. Figs. 2 and 3 exhibit planviews of two sections of the valve-plates. Fig. 4 is a plan view of thechamber in which the valve-plates operate. Fig. 5 is a plan view of theshaft to which the upper valve-plate is soldered.

The letter A, Fig. l, represents the pumpstock, the bore of which isquadrangular and graduallydiminishing in size from its point of junctionwith the valve chamber B until it reaches its curved end, from which thewater is discharged.

The chamber B describes a circle, and is formed of metal or othersuitable material, and rests at one edge on the plate G, and coniined inposition by the plate D,the two plates being held together near theirlower end by screws e c.

The plate D is hinged to the base of the pump-stock, so that by removingthe screws that conne it to C it can be raised up and the valvesrepaired.

F represents the upper and G the lower valve-plate, said platesconsisting of two wings each, united at an angle of about thirtydegrees, and havin g the valves near the ends of the wings. The twoplates are covered with leather on their upper side, which, being cutthrough on three sides, forms a ap -valve, I, which rises or fallsaccording as the pressure of the water may be either upward or downward.

The inner ends of the leather covering on plate G are hinged to the axle7L, thus enabling the plate G to play freely.

The upper plate, F, is soldered to the shaft a, Fig. 5, the shaft ahaving a socket in the end, which receives 'a pivot, t, on the upper endof It.

It will be observed that when the two plates F and G are in position thewings of F Will be at an ascending and the wings of G at a descendingangle.

H represents a wedge shaped block, the thick end of which penetratesashort distance into the pump-stock, while the lower end descends nearto plate F. H is cased on two op posite sides with sheet-irons S, thelower ends of the sheets being at their center long enough to penetratethe leather covering of plate F and there riveted.

It will be seen that the leather coverings on block H extend fartherinto the bore of the pump than the block H does, so that as H is movedto the right or left, in consequence or the motion imparted toV it byplate F, the alternate ends of the projecting leather will press againstthe interior ot' the pump, leaving an open space on the opposite sidefor lthe water to ascend in the pump-bore when forced by the action ofthe plate F.

K represents an arm fastened to the pump and extending at right anglesfrom it. There are two of these arms at opposite sides of the pump,which answer as bearings to the rod V, this rod being formed into acrank at each end, placed at right angles to each other. The two cranksgive motion to the rods m and P, which hook into the bars o,respectively, (see dotted lines, Fig. 1,) the bars o bei-ng litted oneon the projecting end of axle 71. and the other on the end of shaft a.

In operating my machine it will be seen that the alternate wings ot theplates F and G will, under the action ot the rods P and m, approach eachother and then recede. As they approach each other the compression ofthe water between the wings will close the valve in G and open the valvein F. As the win g ot' F rises the Water between it and the block H willagain be compressed and force its way into the opening between the blockH and the pump. This operation is performed l G with thewedge-shapedblock H, the rods m alternately by the wings on the opposite sides andn, the arms K, and the bars 0, the whole 0f plates F land Gr, thusproducing a continul constructed and arranged as and for the purousstream of water from the spout of `the pose herein set forth.

pump. Having thus described my invention, what I JOHN BEAN' claim, anddesire to secure by Letters Patent, Witnesses:

The combina-tion of the valve-plates F and i CHARLES E. THOMPSON.

